Modular ladder



FIG. 1 is a perspective view of a modular ladder showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof shown in a larger scale; and,

FIG. 7 is a bottom plan view thereof shown in a larger scale.

CLAIM The ornamental design for a modular ladder, as shown anddescribed.